ABSTRACT
BACKGROUND: Innovative technology can enhance patient access to healthcare but must be successfully implemented to be effective. OBJECTIVE: We evaluated Department of Veterans Affairs' (VA's) implementation of My VA Images, a direct-to-patient asynchronous teledermatology mobile application enabling established dermatology patients to receive follow-up care remotely instead of in-person. DESIGN /PARTICIPANTS/APPROACH: Following pilot testing at 3 facilities, the app was introduced to 28 facilities (4 groups of 7) every 3 months using a stepped-wedge cluster-randomized design. Using the Organizational Theory of Implementation Effectiveness, we examined the app's implementation using qualitative and quantitative data consisting of encounter data from VA's corporate data warehouse; app usage from VA's Mobile Health database; bi-monthly reports from facility representatives; phone interviews with clinicians; and documented communications between the operational partner and facility staff. KEY RESULTS: Implementation policies and practices included VA's vision to expand home telehealth and marketing/communication strategies. The COVID-19 pandemic dominated the implementation climate by stressing staffing, introducing competing demands, and influencing stakeholder attitudes to the app, including its fit to their values. These factors were associated with mixed implementation effectiveness, defined as high quality consistent use. Nineteen of 31 exposed facilities prepared to use the app; 10 facilities used it for actual patient care, 7 as originally intended. Residents, nurse practitioners, and physician assistants were more likely than attendings to use the app. Facilities exposed to the app pre-pandemic were more likely to use and sustain the new process. CONCLUSIONS: Considerable heterogeneity existed in implementing mobile teledermatology, despite VA's common mission, integrated healthcare system, and stakeholders' broad interest. Identifying opportunities to target favorable facilities and user groups (such as teaching facilities and physician extenders, respectively) while addressing internal implementation barriers including incomplete integration with the electronic health record as well as inadequate staffing may help optimize the initial impact of direct-to-patient telehealth. The COVID pandemic was a notable extrinsic barrier. CLINICAL TRIALS REGISTRATION: NCT03241589.
Subject(s)
COVID-19 , Mobile Applications , Telemedicine , Humans , PandemicsABSTRACT
BACKGROUND: Preclinical studies suggest that blueberry consumption is associated with improved bone health. OBJECTIVES: We conducted a blueberry dose-response study in ovariectomized (OVX)-rats that informed a study in postmenopausal women using the urinary appearance of calcium (Ca) tracers from prelabeled bone to reflect changes in bone balance. We hypothesized that blueberry consumption would reduce bone loss in a dose-dependent manner compared with no treatment. METHODS: OVX rats were fed 4 doses of blueberry powder (2.5%, 5%, 10%, and 15%) in randomized order to determine bone 45Ca retention. Fourteen healthy, nonosteoporotic women ≥4 y past menopause were dosed with 50 nCi of 41Ca, a long-lived radioisotope, and equilibrated for 5 mo to allow 41Ca deposition in bone. Following a 6-wk baseline period, participants were assigned to a random sequence of 3 6-wk interventions, a low (17.5 g/d), medium (35 g/d), or high (70 g/d) dose of freeze-dried blueberry powder equivalent to 0.75, 1.5, or 3 cups of fresh blueberries incorporated into food and beverage products. Urinary 41Ca:Ca ratio was measured by accelerator mass spectrometry. Serum bone resorption biomarkers and urinary polyphenols were measured at the end of each control and intervention period. Data were analyzed using a linear mixed model and repeated measures analysis of variance. RESULTS: In both OVX rats and postmenopausal women, blueberry interventions benefited net bone calcium balance at lower but not at higher doses. In women, net bone calcium retention increased by 6% with the low (95% CI: 2.50, 8.60; P < 0.01) and 4% with the medium (95% CI: 0.96, 7.90; P < 0.05) dose compared with no treatment. Urinary excretion of hippuric acid increased dose-dependently with blueberry consumption. No significant relationships were found between bone resorption biomarkers, 25-hydroxyvitamin D, and interventions. CONCLUSIONS: Moderate consumption (<1 cup/d) of blueberries may be an effective strategy to attenuate bone loss in healthy postmenopausal women. This trial was registered at clinicaltrials.gov as NCT02630797.
Subject(s)
Blueberry Plants , Bone Resorption , Osteoporosis, Postmenopausal , Female , Humans , Rats , Animals , Calcium/urine , Powders , Postmenopause , Cross-Over Studies , Bone Resorption/prevention & control , Biomarkers , Osteoporosis, Postmenopausal/prevention & controlABSTRACT
Introduction: The Veterans Health Administration (VHA) Diffusion of Excellence (DoE) program provides a system to identify, replicate, and spread promising practices across the largest integrated healthcare system in the United States. DoE identifies innovations that have been successfully implemented in the VHA through a Shark Tank style competition. VHA facility and regional directors bid resources needed to replicate promising practices. Winning facilities/regions receive external facilitation to aid in replication/implementation over the course of a year. DoE staff then support diffusion of successful practices across the nationwide VHA. Methods: Organized around the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) Framework, we summarize results of an ongoing long-term mixed-methods implementation evaluation of DoE. Data sources include: Shark Tank application and bid details, tracking practice adoptions through a Diffusion Marketplace, characteristics of VHA facilities, focus groups with Shark Tank bidders, structured observations of DoE events, surveys of DoE program participants, and semi-structured interviews of national VHA program office leaders, VHA healthcare system/facility executives, practice developers, implementation teams and facilitators. Results: In the first eight Shark Tanks (2016-2022), 3,280 Shark Tank applications were submitted; 88 were designated DoE Promising Practices (i.e., practices receive facilitated replication). DoE has effectively spread practices across the VHA, with 1,440 documented instances of adoption/replication of practices across the VHA. This includes 180 adoptions/replications in facilities located in rural areas. Leadership decisions to adopt innovations are often based on big picture considerations such as constituency support and linkage to organizational goals. DoE Promising Practices that have the greatest national spread have been successfully replicated at new sites during the facilitated replication process, have close partnerships with VHA national program offices, and tend to be less expensive to implement. Two indicators of sustainment indicate that 56 of the 88 Promising Practices are still being diffused across the VHA; 56% of facilities originally replicating the practices have sustained them, even up to 6 years after the first Shark Tank. Conclusion: DoE has developed a sustainable process for the identification, replication, and spread of promising practices as part of a learning health system committed to providing equitable access to high quality care.
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The psychospiritual nature of moral injury invites consideration regarding how chaplains understand the construct and provide care. To identify how chaplains in the VA Healthcare System conceptualize moral injury, we conducted an anonymous online survey (N = 361; 45% response rate). Chaplains responded to a battery of items and provided free-text definitions of moral injury that generally aligned with key elements in the existing literature, though with different emphases. Over 90% of chaplain respondents indicated that they encounter moral injury in their chaplaincy care, and a similar proportion agreed that chaplains and mental health professionals should collaborate in providing care for moral injury. Over one-third of chaplain respondents reported offering or planning to offer a moral injury group. Separately, nearly one-quarter indicated present or planned collaboration with mental health to provide groups that in some manner address moral injury. Previous training in evidence-based and collaborative care approaches appears to contribute to the likelihood of providing integrated psychosocial-spiritual care. Results and future directions are discussed, including a description of moral injury that may be helpful to understand present areas of emphasis in VA chaplains' care for moral injury.
Subject(s)
Pastoral Care , Spiritual Therapies , Stress Disorders, Post-Traumatic , Veterans , Clergy/psychology , Delivery of Health Care , Humans , Pastoral Care/methods , Stress Disorders, Post-Traumatic/psychology , United States , Veterans/psychologyABSTRACT
INTRODUCTION: The Veterans Health Administration (VHA) Diffusion of Excellence (DoE) program developed and manages a framework for identification, replication, and diffusion of promising practices throughout the nation's largest integrated health care system. DoE identifies promising practices through a "Shark Tank" competition with winning bidders receiving external implementation facilitation. DoE further supports diffusion of successful practices across the VHA. METHODS: This article presents results of a mixed methods implementation evaluation of DoE, focusing on program reach, program participation and decisions to adopt innovative practices, implementation processes, and practice sustainment. Data sources include practice adoption metrics, focus groups with bidders (two focus groups), observations of DoE events (seven events), surveys of stakeholders (five separate surveys), and semistructured interviews of facility directors, practice developers, implementation teams, and facilitators (133 participants). RESULTS: In the first four Shark Tank cohorts (2016-2018), 1,676 practices were submitted; 47 were designated Gold Status Practices (practices with facilitated implementation). Motivation for participation varied. Generally, staff led projects targeting problems they felt passionate about, facility directors focused on big-picture quality metrics and getting middle manager support, and frontline staff displayed variable motivation to implement new projects. Approximately half of facilitated implementation efforts were successful; barriers included insufficient infrastructure, staff, and resources. At the facility level, 73.3% of facilities originating or receiving facilitated implementation support have maintained the practice. VHA-wide, 834 decisions to adopt these practices were made. CONCLUSION: DoE has resulted in the identification of many candidate practices, promoted adoption of promising practices by facility directors, and supported practice implementation and diffusion across the VHA.
Subject(s)
United States Department of Veterans Affairs , Veterans Health , Humans , Motivation , United StatesABSTRACT
BACKGROUND: Virtual care is critical to Veterans Health Administration (VHA) efforts to expand veterans' access to care. Health care policies such as the Veterans Access, Choice, and Accountability (CHOICE) Act and the Maintaining Internal Systems and Strengthening Integrated Outside Networks (MISSION) Act impact how the VHA provides care. Research on ways to refine virtual care delivery models to meet the needs of veterans, clinicians, and VHA stakeholders is needed. OBJECTIVE: Given the importance of virtual approaches for increasing access to high-quality VHA care, in December 2019, we convened a Think Tank, Accelerating Implementation of Virtual Care in VHA Practice, to consider challenges to virtual care research and practice across the VHA, discuss novel approaches to using and evaluating virtual care, assess perspectives on virtual care, and develop priorities to enhance virtual care in the VHA. METHODS: We used a participatory approach to develop potential priorities for virtual care research and activities at the VHA. We refined these priorities through force-ranked prioritization and group discussion, and developed solutions for selected priorities. RESULTS: Think Tank attendees (n = 18) consisted of VHA stakeholders, including operations partners (e.g., Office of Rural Health, Office of Nursing Services, Health Services Research and Development), clinicians (e.g., physicians, nurses, psychologists, physician assistants), and health services researchers. We identified an initial list of fifteen potential priorities and narrowed these down to four. The four priorities were (1) scaling evidence-based practices, (2) centralizing virtual care, (3) creating high-value care within the VHA with virtual care, and (4) identifying appropriate patients for virtual care. CONCLUSION: Our Think Tank took an important step in setting a partnered research agenda to optimize the use of virtual care within the VHA. We brought together research and operations stakeholders and identified possibilities, partnerships, and potential solutions for virtual care.
Subject(s)
Delivery of Health Care, Integrated , Veterans , Humans , Quality of Health Care , United States , United States Department of Veterans Affairs , Veterans HealthABSTRACT
BACKGROUND: One goal of health systems seeking to evolve into learning health systems is to accelerate the implementation and sustainment of evidence-based practices (EBPs). As part of this evolution, the Veterans Health Administration (VHA) developed the Innovation Ecosystem, which includes the Diffusion of Excellence (DoE), a program that identifies and diffuses Gold Status Practices (GSPs) across facilities. The DoE hosts an annual "Shark Tank" competition in which leaders bid on the opportunity to implement a GSP with 6 months of implementation support. Over 750 diverse practices were submitted in cohorts 2 and 3 of Shark Tank; 23 were designated GSPs and were implemented in 31 VA networks or facilities. As part of a national evaluation of the DoE, we identified factors contributing to GSP implementation and sustainment. METHODS: Our sequential mixed methods evaluation of cohorts 2 and 3 of Shark Tank included semi-structured interviews with at least one representative from 30/31 implementing teams (N = 78/105 people invited) and survey responses from 29/31 teams (N = 39/47 invited). Interviews focused on factors influencing implementation and future sustainment. Surveys focused on sustainment 1.5-2 years after implementation. The Consolidated Framework for Implementation Research (CFIR) informed data collection and directed content analysis. Ordinal scales were developed inductively to rank implementation and sustainment outcomes. RESULTS: Over 50% of teams (17/30) successfully implemented their GSP within the 6-month implementation period. Despite extensive implementation support, significant barriers related to centralized decision-making, staffing, and resources led to partial (n = 6) or no (n = 7) implementation for the remaining teams. While 12/17 initially successful implementation teams reported sustained use of their GSP, over half of the initially unsuccessful teams (n = 7/13) also reported sustained GSP use 1.5 years after the initial implementation period. When asked at 6 months, 18/27 teams with complete data accurately anticipated their future sustainability based on reported sustainment an average of 1.5 years later. CONCLUSIONS: Most teams implemented within 6 months and/or sustained their GSP 1.5 years later. High levels of implementation and sustainment across diverse practices and teams suggest that VHA's DoE is a successful large-scale model of diffusion. Team predictions about sustainability after the first 6 months of implementation provide a promising early assessment and point of intervention to increase sustainability.
ABSTRACT
Melatonin (MEL) is a neurohormone in humans produced in a number of locations. Starting with the amino acid tryptophan, MEL is produced through a number of enzymatic steps that includes serotonin as an intermediate compound. The primary production of MEL is in the pineal gland located in the brain. It is directly associated with the the suprachiasmatic nucleus (SCN) located in the hypothalamus. In young and adult humans, the blood levels of MEL are typically in the picogram levels and produced in a cyclic schedule highly regulated by light detected in the retina by intrinsically photosensitive retinal ganglion cells (ipRGCs), resulting in production primarily during periods of darkness. During periods of light, MEL levels are typically very low or undetectable. Basal levels of MEL in infants have been observed to be either undetectable or also in the picogram levels, although some medical treatment has involved administration of exogenous MEL resulting in peak levels in the nanogram range. MEL is considered to be well tolerated and there have been limited reports of toxicity. In this case, an infant was found unresponsive and cause of death was ruled as Undetermined. Melatonin was detected in the peripheral blood at a concentration of 1,400ng/mL.
Subject(s)
Central Nervous System Depressants/poisoning , Death, Sudden/etiology , Melatonin/poisoning , Central Nervous System Depressants/administration & dosage , Central Nervous System Depressants/blood , Chromatography, Liquid , Female , Gas Chromatography-Mass Spectrometry , Humans , Infant , Melatonin/administration & dosage , Melatonin/blood , Tandem Mass Spectrometry , TwinsABSTRACT
INTRODUCTION: Veterans experience many physical and psychosocial adjustment problems that challenge personal relationships and social functioning and successful social reintegration. The Warrior to Soul Mate (W2SM) program uses a structured curriculum [i.e., the Practical Application of Intimate Relationships Skills (PAIRS)] to address veterans' interpersonal needs by teaching participants effective interpersonal skills. Veterans who attended the W2SM program reported lower anxiety levels, improvements in marital alterations and satisfaction, and increased intimacy, cohesion, and affection. Therefore, sustaining the W2SM program can have long-term positive effects for veterans, families, and the greater society. The purpose of this paper is to describe the sustainability of the W2SM program. METHODS: The Model of Community-based Program Sustainability conceptually guided the evaluation. Twenty-three VA hospitals in the U.S. that offer W2SM programs completed a self-report survey to measure sustainability. RESULTS: The highest scoring sustainability elements were "Demonstrating program results" (M=5.82, SD=1.23), "Staff involvement and integration" (M= 5.79, SD= 1.34), and "Program responsivity" (M=4.39, SD= 1.16); the lowest scoring element was "Strategic funding" (M=2.78, SD=1.75). Statistically significant associations were found between the global middle-range program results and three sustainability elements: leadership competence (r = .472, p = .023), effective collaboration (r = .470, p = .024), and strategic funding (r = .507, p = .014). DISCUSSION: Efforts to sustain programs should focus on leaders planning for sustainability at the onset of program implementation, collaborators must be involved in program design, implementation and evaluation, and long-term funding sources must be secured to support program operations and continuation.
ABSTRACT
BACKGROUND: Dietary soluble corn fiber (SCF) significantly improves calcium absorption in adolescents and the bone strength and architecture in rodent models. OBJECTIVE: In this study, we aimed to determine the skeletal benefits of SCF in postmenopausal women. DESIGN: We used our novel technology of determining bone calcium retention by following the urinary appearance of (41)Ca, a rare long-lived radioisotope, from prelabeled bone to rapidly and sensitively evaluate the effectiveness of SCF in reducing bone loss. A randomized-order, crossover, double-blinded trial was performed in 14 healthy postmenopausal women to compare doses of 0, 10, and 20 g fiber from SCF/d for 50 d. RESULTS: A dose-response effect was shown with 10 and 20 g fiber from SCF/d, whereby bone calcium retention was improved by 4.8% (P < 0.05) and 7% (P < 0.04), respectively. The bone turnover biomarkers N-terminal telopeptide and osteocalcin were not changed by the interventions; however, a significant increase in bone-specific alkaline phosphatase, which is a bone-formation marker, was detected between 0 and 20 g fiber from SCF/d (8%; P = 0.035). CONCLUSION: Daily SCF consumption significantly increased bone calcium retention in postmenopausal women, which improved the bone calcium balance by an estimated 50 mg/d. This study was registered at clinicaltrials.gov as NCT02416947.
Subject(s)
Bone Density Conservation Agents/therapeutic use , Bone Remodeling , Dietary Fiber/therapeutic use , Food, Fortified , Osteoporosis, Postmenopausal/prevention & control , Zea mays/chemistry , Absorptiometry, Photon , Adult , Aged , Biomarkers/blood , Biomarkers/urine , Bone Density Conservation Agents/administration & dosage , Bone Density Conservation Agents/adverse effects , Calcium Radioisotopes , Cohort Studies , Cross-Over Studies , Dietary Fiber/administration & dosage , Dietary Fiber/adverse effects , Double-Blind Method , Female , Food, Fortified/adverse effects , Humans , Indiana , Middle Aged , Osteoporosis, Postmenopausal/diagnostic imaging , Osteoporosis, Postmenopausal/metabolism , Osteoporosis, Postmenopausal/urine , Prebiotics/administration & dosage , Prebiotics/adverse effects , Solubility , Whole Body ImagingABSTRACT
BACKGROUND: The National Comprehensive Cancer Network and the American Society of Clinical Oncology have established guidelines for the treatment and surveillance of colorectal cancer (CRC), respectively. Considering these guidelines, an accurate and efficient method is needed to measure receipt of care. METHODS: The accuracy and completeness of Veterans Health Administration (VA) administrative data were assessed by comparing them with data manually abstracted during the Colorectal Cancer Care Collaborative (C4) quality improvement initiative for 618 patients with stage I-III CRC. RESULTS: The VA administrative data contained gender, marital, and birth information for all patients but race information was missing for 62.1% of patients. The percent agreement for demographic variables ranged from 98.1-100%. The kappa statistic for receipt of treatments ranged from 0.21 to 0.60 and there was a 96.9% agreement for the date of surgical resection. The percentage of post-diagnosis surveillance events in C4 also in VA administrative data were 76.0% for colonoscopy, 84.6% for physician visit, and 26.3% for carcinoembryonic antigen (CEA) test. CONCLUSIONS: VA administrative data are accurate and complete for non-race demographic variables, receipt of CRC treatment, colonoscopy, and physician visits; but alternative data sources may be necessary to capture patient race and receipt of CEA tests.
Subject(s)
Colorectal Neoplasms/therapy , United States Department of Veterans Affairs , Adult , Aged , Aged, 80 and over , Colonoscopy/statistics & numerical data , Databases, Factual , Female , Humans , Knowledge Management , Male , Middle Aged , Quality Improvement , Retrospective Studies , United StatesABSTRACT
CONTEXT: Citrus fruits contain unique flavanones. One of the most abundant of the flavanones, hesperidin, has been shown to prevent bone loss in ovariectomized rats. OBJECTIVE: The objective of the study was to measure the effect of hesperidin with or without calcium supplementation on bone calcium retention in postmenopausal women. DESIGN: The study was a double-blind, placebo-controlled, randomized-order crossover design of 500 g hesperidin with or without 500 mg calcium supplement in 12 healthy postmenopausal women. Bone calcium retention was determined from urinary excretion of the rare isotope, (41)Ca, from bone. RESULTS: Calcium plus hesperidin, but not hesperidin alone, improved bone calcium retention by 5.5% (P < .04). CONCLUSION: Calcium supplementation (Calcilock), in combination with hesperidin, is effective at preserving bone in postmenopausal women.
Subject(s)
Bone and Bones/drug effects , Bone and Bones/metabolism , Calcium, Dietary/administration & dosage , Calcium/metabolism , Hesperidin/administration & dosage , Postmenopause , Aged , Calcium Radioisotopes/urine , Cross-Over Studies , Dietary Supplements , Double-Blind Method , Female , Humans , Middle Aged , Osteoporosis, Postmenopausal/prevention & control , PlacebosABSTRACT
BACKGROUND: Postmenopausal estrogen depletion is a major contributing factor to bone loss. Soy isoflavones have variable effects on the prevention of postmenopausal bone loss, which is possibly related to the specific isoflavone content or the variable equol-producing capacity of individuals. OBJECTIVE: We aimed to determine the effects of the content of isoflavones in a soy supplement and the equol-producing ability of the individual on postmenopausal bone calcium retention. DESIGN: The study was a blinded, randomized, crossover intervention trial in 24 postmenopausal women who were prescreened for their ability to convert daidzein to equol. Women were equilibrated with (41)Ca before the intervention. Interventions were 5 soy isoflavone oral supplements (2 doses of a genistein-rich soy supplement and 3 doses of mixed isoflavones in various proportions) and a bisphosphonate (risedronate). Each intervention was given sequentially for 50 d followed by a 50-d washout period. The percentage of bone calcium retention was determined from the change in urinary (41)Ca:calcium. RESULTS: Interventions that ranged from 52 to 220 mg total isoflavones/d increased bone calcium retention between 3.4% and 7.6% (P < 0.05), which was a moderate effect compared with that of risedronate at 15.3% (95% CI: 7.1%, 22.7%; P = 0.0014). The most-effective soy intervention delivered 105.23 mg total isoflavones/d as genistein, daidzein, and glycitein in their natural ratios and increased bone calcium retention by 7.6% (95% CI: 4.9%, 10.2%; P < 0.0001). Genistein, at 52.85 mg/d, increased bone calcium retention by 3.4% (95% CI: 0.5%, 6.2%; P = 0.029); but there was no benefit at higher amounts (113.52 mg/d). There was no difference (P = 0.5) in bone calcium retention between equol producers and nonproducers. CONCLUSION: Soy isoflavones, although not as potent as risedronate, are effective bone-preserving agents in postmenopausal women regardless of their equol-producing status, and mixed isoflavones in their natural ratios are more effective than enriched genistein. This trial was registered at clinicaltrials.gov as NCT00244907.
Subject(s)
Bone and Bones/drug effects , Calcium/metabolism , Equol/administration & dosage , Glycine max/chemistry , Postmenopause , Administration, Oral , Aged , Cross-Over Studies , Dietary Supplements , Dose-Response Relationship, Drug , Female , Genistein/administration & dosage , Humans , Isoflavones/administration & dosage , Middle Aged , Osteoporosis, Postmenopausal/prevention & control , Phytoestrogens/administration & dosage , Risedronic Acid/pharmacologyABSTRACT
BACKGROUND: Calcium is a shortfall essential nutrient that has been a mainstay of osteoporosis management. Recent and limited findings have prompted concern about the contribution of calcium supplementation to cardiovascular risk. A proposed mechanism is through the acceleration of coronary artery calcification. Determining causality between calcium intake and coronary artery calcification has been hindered by a lack of sensitive methodology to monitor early vascular calcium accumulation. The primary study aim was to assess the impact of high calcium intake on coronary artery calcification using innovative calcium tracer kinetic modeling in Ossabaw swine with diet-induced metabolic syndrome. Secondary end points (in vitro wire myography, histopathology, intravascular ultrasound) assessed coronary disease. METHODS AND RESULTS: Pigs (n=24; aged ≈15 months) were fed an atherogenic diet with adequate calcium (0.33% by weight) or high calcium (1.90% from calcium carbonate or dairy) for 6 months. Following 5 months of feeding, all pigs were dosed intravenously with (41)Ca, a rare isotope that can be measured in serum and tissues at a sensitivity of 10(-18) mol/L by accelerator mass spectrometry. Kinetic modeling evaluated early coronary artery calcification using (41)Ca values measured in serial blood samples (collected over 27 days) and coronary artery samples obtained at sacrifice. Serum disappearance of (41)Ca and total coronary artery (41)Ca accumulation did not differ among groups. Secondary end points demonstrated no treatment differences in coronary artery disease or function. CONCLUSION: There was no detectable effect of high calcium diets (from dairy or calcium carbonate) on coronary artery calcium deposition in metabolic syndrome swine.
Subject(s)
Calcium Carbonate/pharmacokinetics , Calcium, Dietary/pharmacokinetics , Coronary Artery Disease/metabolism , Coronary Vessels/metabolism , Dairy Products , Dietary Supplements , Metabolic Syndrome/metabolism , Vascular Calcification/metabolism , Animals , Calcium Carbonate/administration & dosage , Calcium Carbonate/toxicity , Calcium, Dietary/administration & dosage , Calcium, Dietary/toxicity , Cardiac-Gated Imaging Techniques , Coronary Angiography/methods , Coronary Artery Disease/diagnosis , Coronary Artery Disease/etiology , Coronary Artery Disease/physiopathology , Coronary Vessels/diagnostic imaging , Coronary Vessels/physiopathology , Dairy Products/toxicity , Dietary Supplements/adverse effects , Disease Models, Animal , Female , Metabolic Syndrome/diagnosis , Metabolic Syndrome/etiology , Models, Biological , Myography , Risk Assessment , Swine , Swine, Miniature , Tomography, X-Ray Computed , Ultrasonography, Interventional , Vascular Calcification/diagnosis , Vascular Calcification/etiology , Vascular Calcification/physiopathology , Vasoconstriction , VasodilationABSTRACT
Collaboration between policy, research, and clinical partners is crucial to achieving proven quality care. The Veterans Health Administration has expended great efforts towards fostering such collaborations. Through this, we have learned that an ideal collaboration involves partnership from the very beginning of a new clinical program, so that the program is designed in a way that ensures quality, validity, and puts into place the infrastructure necessary for a reliable evaluation. This paper will give an example of one such project, the Lung Cancer Screening Demonstration Project (LCSDP). We will outline the ways that clinical, policy, and research partners collaborated in design, planning, and implementation in order to create a sustainable model that could be rigorously evaluated for efficacy and fidelity. We will describe the use of the Donabedian quality matrix to determine the necessary characteristics of a quality program and the importance of the linkage with engineering, information technology, and clinical paradigms to connect the development of an on-the-ground clinical program with the evaluation goal of a learning healthcare organization. While the LCSDP is the example given here, these partnerships and suggestions are salient to any healthcare organization seeking to implement new scientifically proven care in a useful and reliable way.
Subject(s)
Early Detection of Cancer/standards , Health Plan Implementation/organization & administration , Health Services Research/organization & administration , Lung Neoplasms/diagnosis , United States Department of Veterans Affairs/organization & administration , Cooperative Behavior , Delivery of Health Care, Integrated/organization & administration , Evidence-Based Medicine/organization & administration , Humans , Leadership , Program Development , Program Evaluation , Quality Assurance, Health Care/organization & administration , United StatesABSTRACT
PURPOSE: High-quality supportive care is an essential component of comprehensive cancer care. We implemented a patient-centered quality of cancer care survey to examine and identify predictors of quality of supportive care for bowel problems, pain, fatigue, depression, and other symptoms among 1,109 patients with colorectal cancer. PATIENTS AND METHODS: Patients with new diagnosis of colorectal cancer at any Veterans Health Administration medical center nationwide in 2008 were ascertained through the Veterans Affairs Central Cancer Registry and sent questionnaires assessing a variety of aspects of patient-centered cancer care. We received questionnaires from 63% of eligible patients (N = 1,109). Descriptive analyses characterizing patient experiences with supportive care and binary logistic regression models were used to examine predictors of receipt of help wanted for each of the five symptom categories. RESULTS: There were significant gaps in patient-centered quality of supportive care, beginning with symptom assessment. In multivariable modeling, the impact of clinical factors and patient race on odds of receiving wanted help varied by symptom. Coordination of care quality predicted receipt of wanted help for all symptoms, independent of patient demographic or clinical characteristics. CONCLUSION: This study revealed substantial gaps in patient-centered quality of care, difficult to characterize through quality measurement relying on medical record review alone. It established the feasibility of collecting patient-reported quality measures. Improving quality measurement of supportive care and implementing patient-reported outcomes in quality-measurement systems are high priorities for improving the processes and outcomes of care for patients with cancer.
Subject(s)
Colorectal Neoplasms/therapy , Comprehensive Health Care/standards , Hospitals, Veterans , Medical Oncology/standards , Patient Satisfaction , Quality of Health Care/standards , United States Department of Veterans Affairs , Aged , Aged, 80 and over , Colorectal Neoplasms/diagnosis , Colorectal Neoplasms/ethnology , Colorectal Neoplasms/psychology , Cross-Sectional Studies , Delivery of Health Care, Integrated/standards , Female , Health Services Accessibility/standards , Health Surveys , Humans , Male , Middle Aged , Multivariate Analysis , Odds Ratio , Patient-Centered Care/standards , Quality of Life , Registries , Surveys and Questionnaires , Treatment Outcome , United StatesABSTRACT
PURPOSE: Racial disparities in cancer treatment and outcomes are a national problem. The nationwide Veterans Affairs (VA) health system seeks to provide equal access to quality care. However, the relationship between race and care quality for veterans with colorectal cancer (CRC) treated within the VA is poorly understood. We examined the association between race and receipt of National Comprehensive Cancer Network guideline-concordant CRC care. PATIENTS AND METHODS: This was an observational, retrospective medical record abstraction of patients with CRC treated in the VA. Two thousand twenty-two patients (white, n = 1,712; African American, n = 310) diagnosed with incident CRC between October 1, 2003, and March 31, 2006, from 128 VA medical centers, were included. We used multivariable logistic regression to examine associations between race and receipt of guideline-concordant care (computed tomography scan, preoperative carcinoembryonic antigen, clear surgical margins, medical oncology referral for stages II and III, fluorouracil-based adjuvant chemotherapy for stage III, and surveillance colonoscopy for stages I to III). Explanatory variables included demographic and disease characteristics. RESULTS: There were no significant racial differences for receipt of guideline-concordant CRC care. Older age at diagnosis was associated with reduced odds of medical oncology referral and surveillance colonoscopy. Presence of cardiovascular comorbid conditions was associated with reduced odds of medical oncology referral (odds ratio, 0.65; 95% CI, 0.50 to 0.89). CONCLUSION: In these data, we observed no evidence of racial disparities in CRC care quality. Future studies could examine causal pathways for the VA's equal, quality care and ways to translate the VA's success into other hospital systems.
Subject(s)
Colorectal Neoplasms/epidemiology , Healthcare Disparities/trends , United States Department of Veterans Affairs , Veterans/statistics & numerical data , Adult , Black or African American/statistics & numerical data , Aged , Aged, 80 and over , Colonoscopy , Colorectal Neoplasms/therapy , Comorbidity , Female , Follow-Up Studies , Humans , Male , Medical Records , Middle Aged , Neoplasm Staging , Prognosis , Retrospective Studies , United States/epidemiology , White People/statistics & numerical dataABSTRACT
BACKGROUND: Veterans Affairs (VA) manages the largest US integrated health care system. Although quality of VA colorectal cancer (CRC) care is well chronicled, there is a paucity of research examining racial differences in this care. This study examines racial differences in 2 dimensions of quality of VA CRC care: processes (time to treatment) and outcomes (survival). PATIENTS AND METHODS: Retrospective data were from the VA External Peer Review Program (EPRP), a nationwide VA quality-monitoring program. Study patients were white and African American men diagnosed with nonmetastatic CRC between 2003 and 2006 who received definitive CRC surgery. We examined 3 quality indicators: time from (1) surgery to initiation of adjuvant chemotherapy (stages II-III disease), (2) surgery to surveillance colonoscopy (stages I-III disease), and (3) surgery to death (stages I-III disease). Unadjusted analyses used log-rank and Wilcoxon tests. Adjusted analyses used Cox proportional hazard models. RESULTS: In unadjusted analyses, there was no evidence of racial differences across the 3 quality measures. In adjusted Cox regression, there were no racial differences in time to initiation of chemotherapy (hazard ratio [HR], 0.82; P = .61) or surgery to death (HR, 0.94; P = .49). In adjusted Cox regression, among those receiving colonoscopy within 7 to 18 months after surgery, white patients experienced slightly shorter median times to surveillance colonoscopy than did African American patients (367 vs. 383 days; HR, 0.63; P = .02). CONCLUSION: Other than a small racial difference in timing of surveillance colonoscopy, there was little evidence of racial differences in quality of CRC care among VA health care system users.
Subject(s)
Colorectal Neoplasms/ethnology , Healthcare Disparities/ethnology , Hospitals, Veterans/standards , Outcome and Process Assessment, Health Care , Aged , Female , Humans , Male , Middle Aged , Racial Groups/statistics & numerical data , Retrospective Studies , United States , United States Department of Veterans Affairs , Veterans/statistics & numerical dataABSTRACT
BACKGROUND: Automated reporting of estimated glomerular filtration rate (eGFR) is a recent advance in laboratory information technology (IT) that generates a measure of kidney function with chemistry laboratory results to aid early detection of chronic kidney disease (CKD). Because accurate diagnosis of CKD is critical to optimal medical decision-making, several clinical practice guidelines have recommended the use of automated eGFR reporting. Since its introduction, automated eGFR reporting has not been uniformly implemented by U. S. laboratories despite the growing prevalence of CKD. CKD is highly prevalent within the Veterans Health Administration (VHA), and implementation of automated eGFR reporting within this integrated healthcare system has the potential to improve care. In July 2004, the VHA adopted automated eGFR reporting through a system-wide mandate for software implementation by individual VHA laboratories. This study examines the timing of software implementation by individual VHA laboratories and factors associated with implementation. METHODS: We performed a retrospective observational study of laboratories in VHA facilities from July 2004 to September 2009. Using laboratory data, we identified the status of implementation of automated eGFR reporting for each facility and the time to actual implementation from the date the VHA adopted its policy for automated eGFR reporting. Using survey and administrative data, we assessed facility organizational characteristics associated with implementation of automated eGFR reporting via bivariate analyses. RESULTS: Of 104 VHA laboratories, 88% implemented automated eGFR reporting in existing laboratory IT systems by the end of the study period. Time to initial implementation ranged from 0.2 to 4.0 years with a median of 1.8 years. All VHA facilities with on-site dialysis units implemented the eGFR software (52%, p<0.001). Other organizational characteristics were not statistically significant. CONCLUSIONS: The VHA did not have uniform implementation of automated eGFR reporting across its facilities. Facility-level organizational characteristics were not associated with implementation, and this suggests that decisions for implementation of this software are not related to facility-level quality improvement measures. Additional studies on implementation of laboratory IT, such as automated eGFR reporting, could identify factors that are related to more timely implementation and lead to better healthcare delivery.
Subject(s)
Health Plan Implementation , Medical Records Systems, Computerized/standards , Practice Patterns, Physicians'/statistics & numerical data , Humans , Kidney/metabolism , Kidney/physiopathology , Practice Guidelines as Topic , Renal Insufficiency, Chronic/diagnosis , Retrospective Studies , Risk Assessment , Time Factors , United States , United States Department of Veterans AffairsABSTRACT
BACKGROUND: Manufacturing large quantities of recombinant RNAs by overexpression in a bacterial host is hampered by their instability in intracellular environment. To overcome this problem, an RNA of interest can be fused into a stable bacterial RNA for the resulting chimeric construct to accumulate in the cytoplasm to a sufficiently high level. Being supplemented with cost-effective procedures for isolation of the chimera from cells and recovery of the recombinant RNA from stabilizing scaffold, this strategy might become a viable alternative to the existing methods of chemical or enzymatic RNA synthesis. RESULTS: Sequence encoding a 71-nucleotide recombinant RNA was inserted into a plasmid-borne deletion mutant of the Vibrio proteolyticus 5S rRNA gene in place of helix III - loop C segment of the original 5S rRNA. After transformation into Escherichia coli, the chimeric RNA (3×pen aRNA) was expressed constitutively from E. coli rrnB P1 and P2 promoters. The RNA chimera accumulated to levels that exceeded those of the host's 5S rRNA. A novel method relying on liquid-solid partitioning of cellular constituents was developed for isolation of total RNA from bacterial cells. This protocol avoids toxic chemicals, and is therefore more suitable for large scale RNA purification than traditional methods. A pair of biotinylated 8-17 DNAzymes was used to bring about the quantitative excision of the 71-nt recombinant RNA from the chimera. The recombinant RNA was isolated by sequence-specific capture on beads with immobilized complementary deoxyoligonucleotide, while DNAzymes were recovered by biotin affinity chromatography for reuse. CONCLUSIONS: The feasibility of a fermentation-based approach for manufacturing large quantities of small RNAs in vivo using a "5S rRNA scaffold" strategy is demonstrated. The approach provides a route towards an economical method for the large-scale production of small RNAs including shRNAs, siRNAs and aptamers for use in clinical and biomedical research.